SAN FRANCISCO (Reuters) - Uber Technologies Inc's former chief executive and some board members knew of a letter alleging employees had stolen trade secrets, but the document was withheld from a high-stakes lawsuit, a company attorney testified on Wedn...

SAN FRANCISCO (Reuters) - Uber Technologies Inc's former chief executive and some board members knew of a letter alleging employees had stolen trade secrets, but the document was withheld from a high-stakes lawsuit, a company attorney testified on Wednesday.